Newton c



(No Model.)

N. U. SAMPLE.

PLOW.

No. 477,230. Patented June'Zl, 1892.

[an I ma "cums versus co we STATES PATENT OFFICE.

NEWTON C. SAMPLE, OF PHILADELPHIA, PENNSYLVANIA.

PLOW.

SPECIFICATION forming part of Letters Patent No. 477,230, dated June 21,1892.

Application filed March 18, 1892. Serial No. 425,434. (No model.)

To all whom it may concern:

Be it known that I, NEWTON C. SAMPLE, a citizen of the United States,residing at the city of Philadelphia, in the county of Philadelphia andState of Pennsylvania, have i11- vented certain new and usefulImprovements in Plows, of which the following is a specification.

My present invention relates in general to plows, and more particularlyto the construction, arrangement, and mode of operation of themold-boards thereof.

The principal object of my invention is to increase the efficiency andreduce the draft of the plow; and to this end my invention consists inthe improvements hereinafter described and claimed.

The nature and object of the invention will be more fully understoodfrom the following description, taken in connection with theaccompanying drawings, forming part hereof, and in which-- Figure 1 is aperspective view of a plow embodying features of my invention. Fig. 2 isa section on the line 2 2 of Fig. 1, illustrating the continuous surfaceof a two part mold-board, over which the furrow-slice is delivered anddeposited to one side of the plow. Fig. 3 is a section on the line 8 3of Fig. 1, illustrating appliances for supporting the front end of theaxis of the rotatable portion of the two-part mold-board; and Fig. 4 isan end view of Fig. 1, showing devices for supporting the rear extremityof the axis of the rotatable portion of the two-part mold-board, andalso showing the configuration or shape of the spirals formed in or onthe same.

In the drawings, a is a mold-board con nected with the front portion ofthe framework b, constituting the landside of the plow, and provided atthe front thereof with-a plowshare a, and at the rear thereof with anoverhanging lip M, for purposes to be hereinafter described. Theinterior of the body portion of the mold-board a is provided with achamber a to which access may be had through openings a and a located,respectively, at the landside and sole of the plow, for a purpose to bepresently explained. One of the handles 0 is carried by the frame-workZ2, constituting the landside of the plow, and the other handle 0' iscarried by a two arm bracket d, whereof one arm is connected with thesole of the landside and the other with the draft-beam e.

fis an axis or spindle disposed at an angle of about twenty degrees withrespect to the landside. The rear extremity of this axis f is carried bythe bracket (Z, and the front extremity of this axis penetrates the rearwall a of the mold-board a and is secured to place by a nut f, locatedin the chamber a so that the openings a and a afford access to this nutor collar f, and also serve to reduce the weight of the plow.

g is a hollow conical body or furrow-slice deliverer rotatably mountedon the axis f and provided at its front extremity with an annu larrecess or beveled end g, adapted to fit under the lip a of themold-board a, Fig. 2, so that the operative surfaces of the moldboard aand body g are in alignment and form in effect a continuous two-partmold-board, of

which the rear section is rotatable and serves to deliver thefurrow-slice to one side of the furrow. The surface of the conical bodyor deliverer g is provided with convex or concave spirals, (designated,respectively, g and g in Fig. 4.) These spirals extend the entire lengthof the body 9 and may have a pitch of about one-third of thecircumference of the same. The wall g of these spirals that engages thefurrow-slice is radial and the other wall g is inclined, as is clearlyillustrated in Fig. 4, for a purpose to be presently explained.

The mode of operation of the hereinabovedescribed plow is as follows:The plowshare a serves to cut the furrow-slice, which slides upward andrearward on the mold-board a in the direction indicated by the arrow xin Fig. 1, and then travels onto the rotatable deliverer 9, above and toone side of the axis thereof, so that the furrow-slice is by therotation of the deliverer g thrown out of the furrow in the directionindicated by the arrow 00 in Fig. 1, and more or less broken up. Thetravel of the furrow-slice from the fixed part'a to the rotatable part 9of the two-part mold-board a is greatly facilitated by the practicalcontinuity of the operating-surfaces of these members, which is due tothe employment of the lip a and annular recess 9. The spirals g areengaged by the furrow-slice, and thus insure the rotation of thedeliverer g. Moreis, with the upper surtace thereof moving away from thelandside of the plow. The rotation of the deliverer g not only effectsthe delivery of the furrow-slice, but also reduces the friction of theplow as a Whole, thereby materially diminishing the draft thereof.

The hereinabove described construction possesses many obviousadvantageous features that have not been specifically pointed out. Forexample, the front end-of the axis f may be readily connected with fixedmoldboards of the type usually employed with the addition of only slightand comparatively inexpensive changes or modifications in the patternfrom which such mold-boards are cast, and the employment of an axisfpermits the body 9 to be made hollow, whereby the Weight of the plow isgreatly reduced.

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. The combination, in a plow, of a conical furrowslicedelivererrotatably mounted upon a. substantially horizontal axis and afixed mold board "having its rear convex surface conforming to "thecvmrvatllrr: r the fr PUSBS 56L LUL'UU.

2. The combination, in a plow, of a rotatable f arrow-slice delivererprovided at its front end with an annular recess and a convex moldboardcarried by thelandside of the plow and provided with a lip fitting saidrecess and conforming to the curvature of the surface of the front endof the furrow-slice deliverer, substantially as and for the purposes setforth.

3. The combination, in a plow, of a fixed mold-board provided with aconvex rear surface and an internal chamber, a bracket connected withthe landside, an axis mounted in said bracket and attached to saidmold-board by a nut in said chamber, and a rotatable furrow-slicedeliverer mounted on said axis and having its operative surface curvedin conformity with the rear convex surface of the mold-board,substantially as and for the purposes set forth.

In witness whereof I have'hereunto set my signature in the presence oftwo subscribing witnesses.

NEVVTON C. SAMPILE.

Witnesses:

HOMAS M. SMITli, RICIIARD C. MAXVQ'ELL.

